# US 10,321,346 B2 · Carrier-based RSRQ metric for efficient small cell offloading > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,321,346 B2 - Document ID: US10321346B2 - Status: Granted - Kind: B2 - Application number: 14/524,598 - Filed: 2014-10-27 - Published: 2015-05-14 - Granted: 2019-06-11 - Earliest claimed: 2013-11-11 - Assignees: Nokia Technologies Oy - Applicants: Nokia Technologies Oy - Inventors: Lars Dalsgaard; Jorma Kaikkonen; Sari Kaarina Nielsen - Web page: https://patentgrep.com/patent/US10321346B2 ## CPC - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Methods and apparatus, including computer program products, are provided for controlling measurements and, in particular, a type of load-sensitive measurement, such as received signal, received quality (RSRQ), performed by a user equipment. Related apparatus, systems, methods, and articles are also described. ## Claims ### Claim 1 A method comprising: receiving, at a user equipment and from a base station, an indicator representative of whether a first type of reference signal received quality measurement or a second type of reference signal received quality measurement is to be used for reference signal received quality measurements; measuring, by the user equipment and in response to the indicator indicating the first type of reference signal received quality measurement associated with an offloading cell, over all orthogonal frequency division multiplexing symbols included in a bandwidth of a subframe to determine the first type of reference signal received quality measurement, the bandwidth including all the orthogonal frequency division multiplexing symbols including first symbols with a reference signal and second symbols without the reference signal; measuring, by the user equipment and in response to the indicator indicating the second type of reference signal received quality measurement, over a subset of all the orthogonal frequency division multiplexing symbols included in the bandwidth of the subframe to determine the second type of reference signal received quality measurement, the subset comprising only the first symbols with the reference signal; and reporting, by the user equipment and to the base station, information indicative of the first type or the second type of reference signal received quality measurement. ### Claim 2 (depends on 1) The method of claim 1, wherein the first type is applied, in response to the indicator indicating that the first type is to be used, to measurements of one or more carriers, one or more cells at the one or more carriers, or a combination of both. ### Claim 3 (depends on 1) The method of claim 1, wherein the second type is a default type of metric to be used, in response to the indicator not explicitly indicating the first type. ### Claim 4 (depends on 1) The method of claim 1, further comprising: determining, when the indicator indicates that the first type is to be used, the reference signal received quality measurements based on the measuring over all the orthogonal frequency division multiplexing symbols included in the bandwidth of the subframe; and determining, when the indicator indicates that the second type is to be used, the reference signal received quality measurements based on the measuring over the subset. ### Claim 5 (depends on 1) The method of claim 1, wherein the reference signal comprises a cell-specific reference signal. ### Claim 6 An apparatus comprising: at least one processor circuitry; and at least one memory circuitry including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to at least: receive, from a base station, an indicator representative of whether a first type reference signal received quality measurement or a second type of reference signal received quality measurement is to be used for reference signal received quality measurements; measure, when the indicator indicates the first type of reference signal received quality measurement associated with an offloading cell, over all orthogonal frequency division multiplexing symbols included in a bandwidth of a subframe to determine the first type of reference signal received quality measurement, the bandwidth including all the orthogonal frequency division multiplexing symbols including first symbols with a reference signal and second symbols without the reference signal; measure, when the indicator indicates the second type of reference signal received quality measurement, over a subset of all the orthogonal frequency division multiplexing symbols included in the bandwidth of the subframe to determine the second type of reference signal received quality measurement, the subset comprising the first symbols with the only reference signal; and report, to the base station, information indicative of the first type or the second type of reference signal received quality measurement. ### Claim 7 (depends on 6) The apparatus of claim 6, wherein when the indicator indicates the first type, the first type is applied to measurements of one or more carriers, one or more cells at the one or more carriers, or a combination of both. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the one or more carriers include all of the carriers allocated to the apparatus. ### Claim 9 (depends on 7) The apparatus of claim 7, wherein the indicator is specific to the apparatus. ### Claim 10 (depends on 7) The apparatus of claim 7, wherein the one or more carriers is associated with one or more offloading cells. ### Claim 11 (depends on 6) The apparatus of claim 6, wherein the second type is a default type of metric to be used when the indicator does not explicitly indicate the first type. ### Claim 12 (depends on 6) The apparatus of claim 6, wherein the apparatus is further caused to at least: determine, when the indicator indicates that the first type is to be used, the reference signal received quality measurements based on the measurement over all the orthogonal frequency division multiplexing symbols included in the bandwidth of the subframe. ### Claim 13 (depends on 6) The apparatus of claim 6, wherein the apparatus is further caused to at least: determine, when the indicator indicates that the second type is to be used, the reference signal received quality measurements based on the measurement over the subset. ### Claim 14 (depends on 6) The apparatus of claim 6, wherein the reference signal comprises a cell-specific reference signal. ### Claim 15 (depends on 6) The apparatus of claim 6, wherein the subframe comprises a subframe dedicated for the received signal received quality measurements. ### Claim 16 A non-transitory computer-readable medium comprising instructions which, when executed by at least one processor circuitry, result in operations comprising: receiving, at a user equipment and from a base station, an indicator representative of whether a first type of reference signal received quality measurement or a second type of reference signal received quality measurement is to be used for reference signal received quality measurements; measuring, by the user equipment and in response to the indicator indicating the first type of reference signal received quality measurement associated with an offloading cell, over all orthogonal frequency division multiplexing symbols included in a bandwidth of a subframe to determine the first type of reference signal received quality measurement, the bandwidth including all the orthogonal frequency division multiplexing symbols including first symbols with a reference signal and second symbols without the reference signal; measuring, by the user equipment and in response to the indicator indicating the second type of reference signal received quality measurement, over a subset of all the orthogonal frequency division multiplexing symbols included in the bandwidth of the subframe to determine the second type of reference signal received quality measurement, the subset comprising only the first symbols with the reference signal; and reporting, by the user equipment and to the base station, information indicative of the first type or the second type of reference signal received quality measurement. ### Claim 17 (depends on 16) The non-transitory computer-readable medium of claim 16, wherein the first type is applied, in response to the indicator indicating that the first type is to be used, to measurements of one or more carriers, one or more cells at the one or more carriers, or a combination of both. ### Claim 18 (depends on 16) The non-transitory computer-readable medium of claim 16, wherein the second type is a default type of metric to be used, in response to the indicator not explicitly indicating the first type. ### Claim 19 (depends on 16) The non-transitory computer-readable medium of claim 16, wherein the operations further comprise: determining, when the indicator indicates that the first type is to be used, the reference signal received quality measurements based on the measuring over all the orthogonal frequency division multiplexing symbols included in the bandwidth of the subframe; and determining, when the indicator indicates that the second type is to be used, the reference signal received quality measurements based on the measuring over the subset.